<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>2.42</title>
</head>
<body>
    <script type="module">
        //必须加type = "module"
        //需同源
        //部分加载
        import {area,circumference} from './module.js';

        console.log('圆面积:' + area(4));
        console.log('圆周长:' + circumference(14));

        //整体加载
        import * as circle from './circle.js';
        console.log('圆面积:' + circle.area(4));
        console.log('圆周长:' + circle.circumference(14));

    </script>
</body>
</html>